const deg = 6;
const hr = document.querySelector("#hr")
const mn = document.querySelector("#mn");
const sc = document.querySelector("#sc");
setInterval(
    ()=>{

        let day = new Date();
        let hh = day.getHours()*30;
        let mm = day.getMinutes() * deg;
        let ss = day.getSeconds() * deg;
        
        hr.style.transform = `rotateZ(${hh+(mm/12)}deg)`;
        mn.style.transform = `rotateZ(${mm}deg)`;
        sc.style.transform = `rotateZ(${ss}deg)`;

    }
)